﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace 类成员调用
{
    namespace ConsoleApp2
    {
        public class App
        {

            public bool Judge(ref int a)
            {
                if (a % 3 == 0)
                {
                    return true;
                }
                else
                {
                    return false;
                }
            }

            public void Ace(out int a, int b, int c)
            {
                a = b + c;
            }

        }
    }
}
